1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2021 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "libpspp/hmap.h"
24 #include "libpspp/str.h"
25 #include "language/lexer/segment.h"
26 #include "language/lexer/token.h"
28 struct macro_expander;
33 struct substring representation;
36 void macro_token_copy (struct macro_token *, const struct macro_token *);
37 void macro_token_uninit (struct macro_token *);
39 void macro_token_to_representation (struct macro_token *, struct string *);
41 bool is_macro_keyword (struct substring);
45 struct macro_token *mts;
50 void macro_tokens_copy (struct macro_tokens *, const struct macro_tokens *);
51 void macro_tokens_uninit (struct macro_tokens *);
52 struct macro_token *macro_tokens_add_uninit (struct macro_tokens *);
53 void macro_tokens_add (struct macro_tokens *, const struct macro_token *);
55 void macro_tokens_from_string (struct macro_tokens *, const struct substring,
58 void macro_tokens_to_representation (struct macro_tokens *, struct string *,
59 size_t *ofs, size_t *len);
61 void macro_tokens_print (const struct macro_tokens *, FILE *);
65 bool positional; /* Is this a positional parameter? */
66 char *name; /* "!1" or "!name". */
67 struct macro_tokens def; /* Default expansion. */
68 bool expand_arg; /* Macro-expand the argument? */
82 struct token enclose[2];
88 struct hmap_node hmap_node; /* Indexed by 'name'. */
91 struct macro_param *params;
94 struct macro_tokens body;
97 void macro_destroy (struct macro *);
104 struct macro_set *macro_set_create (void);
105 void macro_set_destroy (struct macro_set *);
106 const struct macro *macro_set_find (const struct macro_set *,
108 void macro_set_add (struct macro_set *, struct macro *);
111 macro_set_is_empty (const struct macro_set *set)
113 return hmap_is_empty (&set->macros);
116 /* Macro expansion. */
118 int macro_expander_create (const struct macro_set *,
119 const struct token *,
120 struct macro_expander **);
121 void macro_expander_destroy (struct macro_expander *);
123 int macro_expander_add (struct macro_expander *, const struct macro_token *);
125 void macro_expander_get_expansion (struct macro_expander *, struct macro_tokens *);